Gummy Bear Experiment

Energy is a concept.� Most definitions of the word energy fail to provide its exact meaning when applied to scientific matters.� In science the word energy is a concept that expresses two measurable properties, heat and work.� Here is the relationship of energy, heat and work: Energy Released=Work Done + Heat Released

The Law of Conservation of Energy, derived from centuries of observation and measurement, indicates that energy cannot be created or destroyed. But energy need not stay in one place. Energy can be converted from one form to another and can be created in one place and show up in another. Remember that energy, in an open system, can do work on the surroundings or supply heat to the surroundings.�

When we express energy as the sum of heat and work, we are making a very specific claim concerning these two properties. They are related. The relationship between heat and work is a close one, so close the amount of heat and the amount of work must be expressed with numerical values having the same units. Within limits, energy may be controlled to appear as heat (as we use electric power to dry clothes in a dryer) or work (the same electric power rotating the drum in the same dryer). Briefly, we define the amount of heat and/or work using two units, the Joule (J), and the calorie. The Joule and the calorie are related as follows: 1 cal = 4.184J

Both units represent quite small increments of energy. We must add 1 calorie of heat to increase the temperature of 1g of water 1 degree Celsius. Our bodies expend about 1J of work with a single heartbeat. For convenience sake, both the Joule and calorie are often expressed in multiples of 1000. We speak of the kilojoule (kj): 1 kJ = 1000J

and the kilocalorie (kcal).
1 kcal = 1000 cal
Thus we must add 4.184 kJ of heat to raise the temperature of 100g of water 10 degrees Celsius. Chemical Reactions and the Production of Energy Heat and Work We learned the foundation of...

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...Oumou Fofana
Period: 1
Mrs. Furlong
December 19, 2012
GummyBear Lab
Question- If the percent of the concentration of a solution varies, will the amount of water gained or lost vary in a linear fashion?
Hypothesis- If the concentration of a solution varies, then the amount of water lost or gain will not vary in a linear fashion
Prediction- I think that the amount of water lost will not vary in a linear fashion. I think the water will vary like one gummybear would lose 4 grams while another would lose 6 grams while another would lose 3.56 grams. Just numbers all over the place.
Experiment-
1. Materials needed:
a. 5 gummybears
b. 5 beakers
c. A scale
d. Distilled water
e. Salt
f. A cover for each beaker
g. A paper to put on the scale
h. Tweezers
The independent variable is the salt in the water. The dependent variable is whether the amount of water lost or gained in the gummybears varies in a linear fashion. The constants are the type of gummybear used in this experiment, the type of salt, the type of beaker, the type of scale, the cover, amount of water, and the amount of time the gummybears have. The control is the beaker without the salt in it; Beaker A. Safety procedures include washing your hands before and after...

...
GummyBears in Space
Statement of Problem
How, Popsicle sticks and rubber bands, can you build something to launch a gummybear?
Hypothesis
If I tie three Popsicle sticks in a certain way, and tighten rubber bands around them, when you pull the rubber bands they will create enough potential energy to launch a gummybear.
Variables
Independent: Rubber bands and, the Popsicle sticks
Dependent: The distance the gummybear travels
Materials and Procedures
Materials:
• 3 rubber bands
• 3 popsicle sticks
• A gummybear
• Measuring tape
Procedure:
1. Take 2 Popsicle sticks and attach them into a “V” shape with a rubber band.
2. Attach a 3rd Popsicle stick across the center of the other Popsicle sticks with a rubber band.
3. From there, stretch a rubber band across the top.
4. Then, take the gummybear and suspend it back against the front of the rubber band and let go!
5. Lastly, record how far it went, using centimeters.
Qualitative Observations
I noticed that the further I pulled the rubber band back, the more potential energy was created, which increased the distance the gummybear went.
Quantitative Results
Statistics
Mean: 12.83m
Median: 8.5m
Mode: None
Range: 15m
Analysis/Results...

...I really love gummybears. If I were to describe my soul, I would say it taste like gummybears. when I grow up, oh I want to have a gummybear. once there was this cartoon called gummybears and they would drink a special potion. I bet you it taste like gummybears. It could be the worst day but my tummy will be happy if I had gummybears. If you went to the store and you asked me if I needed anything, I would say, gummybears please. If we went to a restaurant you would see my face in disappointment because gummybears is not on the menu. many people have money in there pockets, I have gummybears. I hope on my birthday I have gummybears. If I won the lottery the first thing I'd buy is gummybears. I'd gladly pay you tuesday for some gummybears today. If asked me why that stranger over
joe.again: I hope on my birthday I have gummybears. If I won the lottery the first thing I'd buy is gummybears. I'd gladly pay you tuesday for some gummybears today. If asked me why that stranger over there is crying, i would say maybe he needs a gummy...

...2/12/15
GummyBear Osmosis Lab Report
Purpose: The purpose of this lab is to measure the amount of Osmosis in different types of solutions and to see how a cell would react in different types of solutions.
Hypothesis: My hypothesis for this experiment is that the Gummybear will absorb more of the plain tap and sugar water and the salt water will shrink the gummy
Procedure: Materials- 3 clear cups, one spoon, 3 gummybears, timer, tap water, salt, sugar, ruler, and beaker
Fill one cup of tap water, one cup of tap water and salt, and one cup with tap water and sugar. Measure the 3 different gummies height, width and weight balance before putting them into the solutions. Put a different gummybear in each of the solutions. Time for about 24 hours then remove each one with a spoon carefully. Now measure their height, width and weight balance again.
Data Collection:
BEFORE
Salt water gummy
Sugar water gummy
Tap water gummy
Height
2cm
2cm
2cm
Width
1cm
1cm
1cm
Weight balance
2g
2g
2g
AFTER
Salt water gummy
Sugar water gummy
Tap water gummy
Height
1.5cm
3cm
4cm
Width
.7cm
2cm
2.5cm
Weight balance
1g
3.5g
7g
Representing Data:
Conclusion: My data clearly shows the differences between the height, width, and weight balance before...

...EXPERIMENT 1: REACTIONS OF ENOLATE IONS WITH CARBONYL GROUPS
Aims
In this experiment we used two techniques for the reactions of enolate ions with carbonyl groups. One technique used was Doebner reaction and the other technique used was Claisen-Schmidt reaction. Therefore the aim of this experiment is to synthesize trans p-methoxycinnamic acid and to synthesize dibenzalacetone via an aldol condensation reaction between acetone and benzaldehyde. The products would be recrystallized using ethanol, then characterized using melting point analysis.
Introduction:
In this experiment we learnt on carbonyl compounds, enols and enolates. We also learnt two different techniques to test the reactions of enolate ions with carbonyl groups which are discussed below.
I. Carbonyl Compounds, Enols and Enolates.
Some of the most suitable reactions of carbonyl compounds contain carbon hydrogen bonds adjacent to the carbonyl group. Such reactions, which can be observed as the strength of much synthetic organic chemistry, usually result in the replacement of the hydrogen by some other atom or group, as in the H-C-C=O -+ X-C-C=O. Transformation of a carbonyl compound to an enol at a suitable rate typically needs either a basic catalyst or an acidic catalyst and, of course, at least one hydrogen on the a carbon.
Even though these reactions lead to numerous varied products subjecting to the reagents and conditions, they...

...﻿Experiment : 1
Tittle : Preparation of bis(acetylacetonato)copper(II) complex
Objective : To synthesis the bis(acetylacetonato)copper(II) complex
Introduction :
A complex ion is usually form with high charge density metal ion as a central and formation of coordinate covalent bond (dative bond) with high electron molecules or ions. These molecules or ions are functioning as ligands (electrophile in organic compounds). They are easily attracted by electrophile (electron deficiency atoms or ions ).
Ligands are species that have at least one lone pair of electrons that are readily donated to a metal or an ion to form a coordinate bond. According to lewis acid- base theory, all ligands are lewis base as they act as donor. In the contrary, the metal, central atom act as an lewis acid as it receives lone pair electrons from the ligands when forming the complex ions. The properties of lewis acid is to have high electron deficiency. For transition metals in this experiment, the high charge density, positive charge and their vacant bonding orbitals leads to tendency to attract lone pair electron by filling up their vacant orbitals.
Metal acetylacetonates, formed by a metal and multiple acetylacetonate anions, are prime examples of coordination complexes. In this experiment, the metal use is copper (II) ion which is crystal blue in colour when it is copper(II)nitrate. All metal ions in solution can react...

...﻿Investigating the effect of different concentrations of glucose on the percent change in mass of Gummybears according to their respective colours
In this experiment osmosis is the main process taking place. Osmosis is the diffusion of water molecules of a solvent which pass through a semi permeable layer and in most cases are due to a concentration gradient meaning that the water molecules travel from an area of low concentration to one of higher concentration. In this investigation, gummybears of different colours (dependent variable) were placed in different concentrations of glucose (independent variable) over a certain period of time.In addition to that, the color of the gummybears was also observed to see if the color could influence the rate of uptake and ultimately the change in mass of the gummybears. In essence, water molecules from the glucose solution move through the semi-permeable membrane of the gummybears, thus creating a change in mass of the gummybear. The controlled variables that had to be established to increase the precision and accuracy of this experiment were the following:
The time in which the gummybears were placed inside the solutions of glucose: this could increase the number of water molecules passing through...

...Question:
What do you think will happen to a gummybear when you put it in water over night?
Research Hypothesis:
The gummybear will dissolve in the water due to the fact that most gummybears are made out of pure sugar. Also that since gummybears are sugar and sugar usually dissolves in water. Also it will vary due to the amount of water that is used in the experiment.
Null Hypothesis:
The amount of sugar in the gummybears and the amount of water that is used will have no effect on what happens to the gummybears.
Independent Variable(s):
Foam Cup
Dependent Variable(s):
Color of the gummybear
Controlled Variable(s):
Amount of water
Amount of time
Control Group:
There was no control group
Materials and Methods
Materials
1 Foam cup
1 GummyBear
50 ml of water
Procedures
First, measure the length of the GummyBear
Second, measure the widest point of the GummyBear to get the width
Third, measure the thickness of the GummyBear
Fourth, calculate the volume of the GummyBear
Fifth, measure the mass of the GummyBear using a triple beam balance
Sixth, calculate the density of...